Method of manufacturing composite boofing



J. LOGAN METHOD 0F MANUFACTURING COMPOSITE ROOFING Filed March 13, 1922 I Aug. 25, 1925. 1,551,318

Inf/'0 71 tar Jafrfl Logan insulator.

tication.

Patented Aug. 25, 1925.

UNITED STATES JOHN menu, or omoaoo, 1LLmo1s.

METHOD OF MANUFACTURING COMPOSITE ROOFING.

I ap ucmonmea ma. 15;1922. smaim naza.

To all whom conce m:

Be it known that JOHN LOGAN, a citizen ofithe United States, and a resident of the city of Chicago, county of Cook, State of Illinois, has invented an Improvement in compound whiclrmay adhere to the surfaces of the sheet as it emerges from the bath, the sheet is passed between a pair of squeeze 7 Methods of vManufacturing Composite Roofing, of which the following is a speci- This invention relates to the method of manufacturing composite roofing and, among other objects, is intended to provide a method for producing economically and efficiently a roo ng material which is waterproof andpossesses improved fire resisting qualities, and which forms an efficient heat The invention includes, amon other things, the application of ametal ic sheet or veneer to the surface of composite roofing, such as asphalt-coated felt, preferably as one ofthe steps in the manufaoture of said roofing.

, The coating of asphalt, or the like, may be applied to either one or both sides of J the felt or other fibrous material, and after having been distributed and gauged to form a layer of uniform thickness over the surface of the felt, has applied thereto themetal veneer to cover, pre,ferahly,-the exposedportion of the roofing. I

The metal veneer may be applied while hot, causing it to adhere more; securely to the coated-felt and, if desired, may be pro vided with perforations arranged in any desired design, whereby the asphalt coating may be pressed into and exposed to view through said perforations.

The invention may be best understood by reference to an illustrative method embody- 'ing the invention, and illustrated,'somewhat diagrammatically, in the drawings. 7 Referring to said drawings:

Fig. 1 is a diagrammatic view illustrating one mode of manufacture of the roofing.

Fig. 2 is a perspective view of a fragment of the roofing representing a strip construct ed in accordance with the improved method.

Referring to the drawings, and particularly to Fig. 1 thereof in which is illustrated one method by which the desired results may be accomplished, a sheet 5 of fibrous material such as cheap rag felt, or the like, is supplied from a roll 6 and passed through a bath 7 of impregnating compound such, for example, as light asphalt.

- the other to The-said asphalt other-compound is preferably of such consistency and temperature asto be absorbed readily by 'the'fibrous sheet as the latter passes therethrough.

To: remove any excessof impregnating rolls 8 and 9, one of which may beadjustable for. the purpose of determining the pressure to be exerted upon the sheet 5.

. After passing the squeeze rolls,.the impregnated fibrous sheet is coated on one or both surfaces with a substantial layer 10 ofimpervious waterproofing compound,

such .as'hea'vy asphalt or the like.

This water-proofing compound may be applied to the-u per surfaceof the felt from a hopper 11 an spread thereon'by a roller 12 and, if desired,..a coating of the compound maybe applied to the bottom surface of the felt a so, by a roller 13 adapted to convey the compound from a receptacle 15, such as copper or other metal not sus-' ceptible. toatmospheric conditions is then applied to one-of the layers 10, preferably to that portion ordinarily exposed when the same is on a roof orthe like, to protect the roofing from sparks, firebrands and the like.

The sheet 15, if desired, may be: provided a with a series of perforations 16 which may be arranged in straight parallel'lines tending transversely of the sheet, as shown in Fig. 2, or may be arranged in any other preferred designs to produce the desired f ied whenthe strip islaid on a roof or the adjacent layer of protecting compound by a roller 17 in a manner to be imbedded therein a distance substantially equal to the thickness of the veneer, thereby bringing its upper surface substantially flush with The metal sheet 15 may be applied to the I the uncovered surface of the layer and causf ing the compound to be pressed into the perforations in a manner to be exposed at the outer surface oft-he sheet as shown in Fig. 2. a

The perforating of the sheet 15 may, if desired, be made a step .in the method of manufacture.

The perforationsl6 are preferably of greater lineal dimension than the narrow intermediate connectingstrips 18, and the exposure of the compound thteretl'n'ough presents the appearance of a continuous line, suggestive of the space between adjacent edges of ordinary shingles when the overlapping strips are laid on a roof or the like.

If desired, the roller 17 may be so posi tioned as to cause the compound to be pressed through the perforations and beyond the outer surface of the sheet 15 where it may be pressed or permitted to cover the connecting strips 18, thereby actually forniing a. continuous line of compound at the surface of said sheet.

The strip 15 may be of copper or similar material and may be supplied from a roll 19, passed over a heated, roller 20 and beneath the roller 17 whereitis applied to the roofing.

By heating the veneer as it passes over the roller 20 and pressing it firmly upon the coat of impervious compound 10 will cause it to adhere securely thereto.

To prevent the asphalt or other com pound from adhering to the roller 17 where the latter engages the said compound as it emerges from the perforations 16, there may be provided a hopper or other receptacle 21 containing flake mica, soapstone or the like and adapted to deposit the same on the surface of said roller.

Obviously, the metal strip 15', if desired, may be corrugated, e'n'ibossed or otherwise impressed with decorative designs, or may be oxidized. or otherwise treated to produce the desired appearance.

The roofing embodying this invention may be made in long sheets to be handled in rolls as in the case of some prepared roofing at present in use or may be cut to form individual shingles, or into shingle strips of any desired width by the cutters 22.

Suitable supports may be provided for the proper handling of the rooting through the process of its manufacture.

()hviously, the present invention is not limited to the particular arrangement shown, but may be variously modified. Moreover, it is not indispensable that all the features of the invention be used conjointly, as they may be used to advantage in vagauging the thickness of said layers; applymg a heated copper veneer'to one of said layers; and imbedding. the veneer, therein.

2 A method for making composlte roofing which includes: lmpregnatmg a sheet of fibrous material with a preserving solution;

removing excess solution from said sheet;

applying layers of impervious waterroofing compound to opposite sides 0 said sheet; gauging the thickness of said layers; heating a thin metal veneer and imbedding the same into one of said layers.

3. A method for making composite roofing which includes: impregnating a sheet of fibrous material with a preserving solution; applying one or more layers of impervious waterproofing compound to said sheet; gauging the thickness of said layers; heating aveneer of thin metal and applying the same to one of said layers.

4. A method for making composite roofin; which includes: impregating a sheet of fibrous material with a preserving solution, applying to said sheet one or more layers of impervious water-proofing compound gauging the thickness of said layers; applying a veneer of heated metal to one of said layers and cutting the roofing so formed into desired widths.

5. A method. of making composite roofing of the type described which comprises, coating a sheet of fibrous material with a layer of heavy asphalt and While in softened condition applymg thereto a relatively thin perforated sheet of copper for substan-' tially covering the area of the roofing to be exposed.

'6. The method of making composite roof ing which comprises, coating a sheet of material with a layer of im pervious adhesive water-proofing compound, and applying thereto under pressure a surface sheet of thin metal having spaced groups of small perforations.

In testimony whereof, I have signed my name to this specification.

JOHN LOGAN. 

